Advice 1: How to convert gas to Gcal

The calculation of the calorific value of the gas requires, as a rule, owners of houses and cottages for payments with gas suppliers. Blue fuel in this case is used to keep the heat in the room and heating water, and these utilities are measured in Gcal.

Read the gas meter. Record your measurements on the used container. To see how much energy you have consumed, you need to multiply the readings on the caloric value of the fuel. Natural gas is a mixture of propane, butane and other compounds. Therefore in different regions of the specific heat of a cubic meter of it can range from 7,6 thousand to 9.5 thousand kcal. According to the order of the Federal tariff service, use a value 7900 kcal for gas produced by Gazprom. For bulk purchases provides for the allocation in case of deviations from the norm.

2

Translate calories into larger units. Giga-calorie is 10 to the ninth power of calories. Or a one with nine zeros. If you have consumed 1,000 cubic meters, taking into account possible fluctuations in the calorific value of the gas, you should be able to 7.6 Of 9.5 Gcal. But such a substantial consumption for residential buildings with individual boilers do not tend to. Accordingly, the owner of the cottage will only be paying for some part of Giga-calorie.

3

Use the gas calorimeter for the accurate determination of power consumption of blue fuel. It is reasonable to do this if you have large amounts of consumption. Manufacturers of such devices are focused on large enterprises in the energy sector, ferrous metallurgy, oil refining etc. He is required not only for payments but also for the optimization of the ratio gas-air in heating burners and to manage large gas flows.

4

Swipe a rough calorie consumption of gas in the absence of the appropriate metering device. In this case, you will be billed the fee at the rate that represents the amount of fuel set for different types of consumption. Multiply this value by the average, the calorific value in the 7900 kcal/m3. Get the amount of energy used.

Advice 2: How to convert watts to kcal

Watts, W, W – SI the unit of power was named after its maker, James watt. Watts as a measure of capacity adopted in the 1889, previously used HP – horsepower. Will not be superfluous to know how power can be transferred to other units.

You will need

calculator.

Instruction

1

To transfer the electrical power (occasionally say heat capacity) to any other unit of measurement, use of data on the ratio of different units. To do this, simply multiply the given number of power ratio that matches the unit of measure in which to translate. 1 Watt-hour is equivalent to only 3.57 kJ; 1 Watt is equal to 107 erg/s; 1 j/s; 859,85 cal/h; 0,00134 HP For example, the organization pointed out a number 244,23 kW, which should translate into calories.244,23 kW => 244,23* 1000 watts = 244,23* 1000* 859,85 => = 210 000 000 cal/h or 0.21 G cal/h

2

In the calculations related to power, typically use the standard consoles, especially when the measured value is too small or, on the contrary, large. This simplifies the calculations associated with the order value. Watts by itself is almost never used. Put the multiple number among a form according to the scheme given below.

Find out what kind of unit of measure of heat energy required to transfer power. The options are: j or Joule – unit of work and energy; Cal (Calories) is the unit of heat energy, can be written simply as calories, and might look like this – kcal/hour.

Note

Sometimes you have to work with very large numbers, so you can get lost in the conversion of a number to the integer part. Translate power into energy slowly and use a scientific calculator.

Useful advice

Don't confuse kW and kWh. These two units are often confused, especially when speaking about appliances. But these two units belong to different physical quantities. In watts and kilowatts measure power, i.e. the amount of energy that the device consumes per unit time. WH or kWh, they are determined by the amount of work performed by this device.